Vertical cuttings dryer is the main machine used to treat oil base mud drilling cuttings. It is normally used together with high speed decanter centrifuge, screw conveyer and Thermal Desorption unit.

GN brand Vertical Cutting Dryer utilize centrifugal force to treat drilling cuttings. For other brand vertical cuttings dryer, they can only treat oil base mud or or synthetic base, they cannot be used to treat water base mud. GN brand vertical cuttings dryer. with its patent design, can treat both water base mud and oil base mud, as well as synthetic base mud. And it can be used in most critical condition jobsite.
A stainless steel screen bowl traps “wet” solids and rotating them up to 900RPM with G force up to 420. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation. GN cutting dryer has been done strict balance testing for all major rotary components to minimize vibration & noisy.

Vertical cuttings dryer for oil base mud
As the necessary machine to treat oil base drilling cuttings, vertical cuttings dryer can reduce the oil on cuttings to 3~5%. Per Job site report, GN Second generation vertical cuttings dryer can reduce OOC (oil on cuttings) to 3.7% or less. It can greatly release the upstream processing machine capacity.

Compared with oil base mud, water base mud drilling cuttings is more critical for treatment. It is easy to block the screen basket and cause machine stop. GN second design vertical cuttings dryer with pressed air knife system for flushing the screen. It can be used to treat water base mud drilling as well. And the performance have been approved by job site test.
Customer can visit GN web site for job site video.
Video: GN Oil Based Drilling Cuttings Dryer for Shell Project   
http://www.gnsolidscontrol.com/video/gn-oil-based-drilling-cuttings-dryer-shell-project  

Video:GN Vertical Cuttings Dryer for water based mud drilling waste Management
http://www.gnsolidscontrol.com/video/vertical-cuttings-dryer-water-based-mud-drilling-waste

High G shale shaker can also used to treat water base mud. But it is not dry enough. With the high speed rotating, GN second generation vertical cuttings dryer GNCD930C can reduce the water on cuttings to a lower rate and make it easy for trailer movement.